Just found this one where a creative knife sharpener re-purposes a chefs knife into two knives. After this video there is another where he repairs, makes a new handle then saya for a rusted knife. Notice the handy angle guide he uses for sharpening.
https://www.youtube.com/watch?v=GNP5AnKM318
https://www.youtube.com/watch?v=DdZlPUlFQ2w